In a large bowl, cream the butters, brown sugar and sugar substitute until light and fluffy. Beat in peanut butter. Add eggs, one at a time, beating well after each addition. Combine the flour, oats, baking powder, salt and baking soda; gradually add to creamed mixture and mix well. Stir in the raisins, coconut and chocolate chips.
Drop by rounded tablespoonfuls onto ungreased baking sheets. Bake at 350° for 12-14 minutes or until golden brown. Cool for 2 minutes before removing to wire racks. Yield: 5 dozen.